cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vector_user.h (2550B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
      4 */
      5
      6#ifndef __UM_VECTOR_USER_H
      7#define __UM_VECTOR_USER_H
      8
      9#define MAXVARGS	20
     10
     11#define TOKEN_IFNAME "ifname"
     12
     13#define TRANS_RAW "raw"
     14#define TRANS_RAW_LEN strlen(TRANS_RAW)
     15
     16#define TRANS_TAP "tap"
     17#define TRANS_TAP_LEN strlen(TRANS_TAP)
     18
     19#define TRANS_GRE "gre"
     20#define TRANS_GRE_LEN strlen(TRANS_GRE)
     21
     22#define TRANS_L2TPV3 "l2tpv3"
     23#define TRANS_L2TPV3_LEN strlen(TRANS_L2TPV3)
     24
     25#define TRANS_HYBRID "hybrid"
     26#define TRANS_HYBRID_LEN strlen(TRANS_HYBRID)
     27
     28#define TRANS_BESS "bess"
     29#define TRANS_BESS_LEN strlen(TRANS_BESS)
     30
     31#define DEFAULT_BPF_LEN 6
     32
     33#ifndef IPPROTO_GRE
     34#define IPPROTO_GRE 0x2F
     35#endif
     36
     37#define GRE_MODE_CHECKSUM	cpu_to_be16(8 << 12)	/* checksum */
     38#define GRE_MODE_RESERVED	cpu_to_be16(4 << 12)	/* unused */
     39#define GRE_MODE_KEY		cpu_to_be16(2 << 12)	/* KEY present */
     40#define GRE_MODE_SEQUENCE	cpu_to_be16(1 << 12)	/* sequence */
     41
     42#define GRE_IRB cpu_to_be16(0x6558)
     43
     44#define L2TPV3_DATA_PACKET 0x30000
     45
     46/* IANA-assigned IP protocol ID for L2TPv3 */
     47
     48#ifndef IPPROTO_L2TP
     49#define IPPROTO_L2TP 0x73
     50#endif
     51
     52struct arglist {
     53	int	numargs;
     54	char	*tokens[MAXVARGS];
     55	char	*values[MAXVARGS];
     56};
     57
     58/* Separating read and write FDs allows us to have different
     59 * rx and tx method. Example - read tap via raw socket using
     60 * recvmmsg, write using legacy tap write calls
     61 */
     62
     63struct vector_fds {
     64	int rx_fd;
     65	int tx_fd;
     66	void *remote_addr;
     67	int remote_addr_size;
     68};
     69
     70#define VECTOR_READ	1
     71#define VECTOR_WRITE	(1 < 1)
     72#define VECTOR_HEADERS	(1 < 2)
     73
     74extern struct arglist *uml_parse_vector_ifspec(char *arg);
     75
     76extern struct vector_fds *uml_vector_user_open(
     77	int unit,
     78	struct arglist *parsed
     79);
     80
     81extern char *uml_vector_fetch_arg(
     82	struct arglist *ifspec,
     83	char *token
     84);
     85
     86extern int uml_vector_recvmsg(int fd, void *hdr, int flags);
     87extern int uml_vector_sendmsg(int fd, void *hdr, int flags);
     88extern int uml_vector_writev(int fd, void *hdr, int iovcount);
     89extern int uml_vector_sendmmsg(
     90	int fd, void *msgvec,
     91	unsigned int vlen,
     92	unsigned int flags
     93);
     94extern int uml_vector_recvmmsg(
     95	int fd,
     96	void *msgvec,
     97	unsigned int vlen,
     98	unsigned int flags
     99);
    100extern void *uml_vector_default_bpf(const void *mac);
    101extern void *uml_vector_user_bpf(char *filename);
    102extern int uml_vector_attach_bpf(int fd, void *bpf);
    103extern int uml_vector_detach_bpf(int fd, void *bpf);
    104extern bool uml_raw_enable_qdisc_bypass(int fd);
    105extern bool uml_raw_enable_vnet_headers(int fd);
    106extern bool uml_tap_enable_vnet_headers(int fd);
    107
    108
    109#endif